Description:
------------
According to the documentation PDOStatement::closeCursor() […] leaves the statement in a state that enables it to be executed again. The example below works at least with pdo_mysql, pdo_sqlite and pdo_pgsql but doesn't work with pdo_oci.

Test script:
---------------
$conn = new PDO(
    'oci:dbname=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521))(CONNECT_DATA=(SID=XE)))',
    'system',
    'oracle'
);

$stmt = $conn->prepare('SELECT ? FROM DUAL');
$stmt->execute([1]);
$value = $stmt->fetchColumn();
var_dump($value);

$stmt->closeCursor();

$stmt->execute([2]);
$value = $stmt->fetchColumn();
var_dump($value);


Expected result:
----------------
string(1) "1"
string(1) "2"

Actual result:
--------------
string(1) "1"
NULL